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GB/T 7739.12-2016 Methods for chemical analysis of gold concentrates - Part 12: Determination of arsenic, mercury, cadmium, lead and bismuth atomic fluorescence spectrometric method $130.00 via email in 1~3 business day valid
GB/T 7739.13-2019 Methods for chemical analysis of gold concentrates—Part 13:Determination of lead,zinc,bismuth,cadmium,chromium,arsenic and mercury contents—Inductively coupled plasma atomic emission spectrometry $160.00 via email in 1~3 business day valid
GB/T 7739.14-2019 Methods for chemical analysis of gold concentrates—Part 14:Determination of thallium content—Inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry $160.00 via email in 1~3 business day valid
GB/T 7739.2-2007 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver contents $124.00 via email in 1~3 business day abolished
GB/T 7739.2-2019 Methods for chemical analysis of gold concentrates—Part 2:Determination of silver content—Flame atomic absorption spectrometric method $100.00 via email in 1~3 business day valid
GB/T 7739.3-2007 Methods for chemical analysis of gold concentrates—Part 3:Determination of arsenic contents $180.00 via email in 1~3 business day superseded
GB/T 7739.3-2019 Methods for chemical analysis of gold concerntrates—Part 3:Determination of arsenic content $160.00 via email in 1~3 business day valid
GB/T 7739.4-2007 Methodds for chemical analysis of gold concentrates—Part 4:Determination of copper contents $120.00 via email in 1~3 business day superseded
GB/T 7739.4-2021 Methods for chemical analysis of gold concentrates—Part 4:Determination of copper content $225.00 via email in 1~3 business day valid
GB/T 7739.5-2007 Methods for chemical analysis of gold concentrates—Part 5:Determination of lead contents $180.00 via email in 1~3 business day superseded
GB/T 7739.6-2007 Methods for chemical analysis of gold concentrates—Part 6:Determination of zinc contents $180.00 via email in 1~3 business day superseded
GB/T 7739.7-2007 Methods for chemical analysis of gold concentrates—Ppart 7:Determination of iron contents $124.00 via email in 1~3 business day superseded
GB/T 7739.7-2022 Methods for chemical analysis of gold concentrates—Part 7: Determination of iron content $105.00 via email in 1~3 business day valid
GB/T 7739.8-2007 Methods for chemical analysis of gold concentrates—Part 8:Determination of sulfur contents $180.00 via email in 1~3 business day superseded
GB/T 7739.8-2022 Methods for chemical analysis of gold concentrates—Part 8: Determination of sulfur content $210.00 via email in 1~3 business day valid
GB/T 7739.9-2007 Methods for chemical analysis of gold concentrates—Part 9:Determination of carbon contents $120.00 via email in 1~3 business day valid
T/CGA 39-2023 Technical specification for treatment of cyanide leaching residue―Hydrogen peroxide oxidation process via email in business day valid
T/NAHIEM 103-2023 Water dispenser with instant heating for household and similar purposes $375.00 via email in 1~5 business day valid
T/NAHIEM 61-2022 Standards for the treated water quality of drinking water treatment units $165.00 via email in 1~3 business day valid
T/NAHIEM 99-2023 Classification standard of household and similar water softeners $225.00 via email in 1~3 business day valid
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